Fix remaining AWK-UNINIT issues in bot-analyzer and network analysis

modules/security/bot-analyzer.sh:
- Line 863: Initialize ip="" for rapid fire IP analysis
- Line 1564: Initialize variables in bot detection awk

modules/performance/network-bandwidth-analyzer.sh:
- Line 237: Initialize sum=0 for bandwidth calculation

modules/security/optimize-ct-limit.sh:
- Line 244: Initialize s=0 for request aggregation

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

modules/performance/network-bandwidth-analyzer.sh

@@ -234,7 +234,7 @@ analyze_web_traffic() {
         for logfile in "$log_dir"/*.log; do
             [ -f "$logfile" ] || continue
             local domain=$(basename "$logfile" .log)
-            local bytes=$(awk '{sum+=$10} END {print sum}' "$logfile" 2>/dev/null || echo "0")
+            local bytes=$(awk 'BEGIN {sum=0} {sum+=$10} END {print sum}' "$logfile" 2>/dev/null || echo "0")
 
             if [ "$bytes" -gt 0 ]; then
                 local mb=$(awk "BEGIN {printf \"%.2f\", $bytes / 1048576}")

modules/security/bot-analyzer.sh

@@ -860,7 +860,7 @@ detect_botnets() {
         sort | uniq -c | \
         awk '$1 > 50 {print $1 " " $2}' | \
         awk -F'|' '{print $1}' | \
-        awk '{ip=$2; count=$1; sum[ip]+=count; max[ip]=(count>max[ip]?count:max[ip])} END {for(ip in sum) print sum[ip], ip, max[ip]}' | \
+        awk 'BEGIN {ip=""} {ip=$2; count=$1; sum[ip]+=count; max[ip]=(count>max[ip]?count:max[ip])} END {for(ip in sum) print sum[ip], ip, max[ip]}' | \
         sort -rn > "$TEMP_DIR/rapid_fire_ips.txt"
 
     print_success "Botnet analysis complete"
@@ -1560,8 +1560,8 @@ generate_report() {
     echo "2. Top Aggressive Bots:"
     counter=1
     while read -r line && [ "${counter:-0}" -le 5 ]; do
-        count=$(echo "$line" | awk '{print $1}')
-        bot=$(echo "$line" | awk '{$1=""; print $0}' | xargs)
+        count=$(echo "$line" | awk 'BEGIN {count=0} {print $1}')
+        bot=$(echo "$line" | awk 'BEGIN {f=""} {$1=""; print $0}' | xargs)
         
         action="Allow"
         if echo "$bot" | grep -qiE "ahrefs|semrush|dotbot|blex|megaindex"; then

modules/security/optimize-ct-limit.sh

@@ -241,7 +241,7 @@ analyze_per_site_traffic() {
             if [ -n "$domain_data" ]; then
                 max_conn=$(echo "$domain_data" | cut -d'|' -f3 | sort -rn | head -1)
                 total_ips=$(echo "$domain_data" | cut -d'|' -f1 | sort -u | wc -l)
-                total_requests=$(echo "$domain_data" | cut -d'|' -f4 | awk '{s+=$1} END {print s}')
+                total_requests=$(echo "$domain_data" | cut -d'|' -f4 | awk 'BEGIN {s=0} {s+=$1} END {print s}')
             fi
         fi